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Broadcom STA Wireless drivers not working on Dell Inspiron 5420

rated 0 times [ 2] [ 0] / answers: 1 / hits: 5442 / 1 Year ago, mon, march 27, 2023, 10:02:14

I'm new to linux. I just started working on ubuntu 12.04. Wifi is not working on ubuntu. It works on Windows 7 though.

When I tried connecting to the net throght LAN it works. Also, through LAN I checked for additional drivers. There were no drivers found.

The command lspci -nn | grep 0280 gives me :

02:00.0 Network Controller [0280]: Broadcom Corporation Device [14e4:4365] (rev 01)

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raldership

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2 Years ago

answered 1 Year ago rmiend · Accepted Answer

Check this link Broadcom STA Wireless Driver for the initial help. It has instructions on how to determine your card model and how to install if you have an internet connection or not.

If that doesn't get you anywhere, try this. I found this on a forum somewhere (credit to whoever wrote this):

Please try the b43 driver and firmware instead of the wl driver.

Please copy-paste the following commands into the Terminal (using a working, wired Internet connection):

sudo apt-get update

sudo apt-get remove --purge bcmwl-kernel-source

sudo apt-get install firmware-b43-lpphy-installer

Then please run the following command:

gksudo gedit /etc/modprobe.d/blacklist.conf

Using the gedit editor, please REMOVE the following configuration lines in
the /etc/modprobe.d/blacklist.conf file:

blacklist b43

blacklist b43legacy

Save the change to the /etc/modprobe.d/blacklist.conf file after removing the
configuration lines.

Then reboot and retest wireless.

Source: https://answers.launchpad.net/ubuntu/+source/gnome-nettool/+question/178531